Ios 11 Beta 8 Release Notes FC1.Pages

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iOS 11 beta 8 Release Notes

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About iOS 11 beta 8 ...... 3 Bug Reporting ...... 3 Technical Support and Learning Resources ...... 3 Autosubmission of Diagnostic and Usage Data ...... 3 Notes and Known Issues ...... 4 General ...... 4 32-bit Apps ...... 4 3D Touch ...... 4 3rd Party Apps ...... 5 AirPlay ...... 5 Android Migration ...... 5 App Analytics ...... 5 App Icons ...... 6 App Store ...... 6 Apple ID ...... 6 Apple Pay ...... 6 ARKit ...... 7 AVFoundation ...... 7 Bluetooth ...... 7 Calendar ...... 7 CarPlay ...... 8 Classroom ...... 8 CloudKit ...... 8 Connectivity ...... 8 Control Center ...... 8 Core Spotlight ...... 9 Do Not Disturb ...... 9 EventKit ...... 9 FaceTime ...... 9 Family Sharing ...... 9 Files App ...... 9 Foundation ...... 10 Haptics ...... 10 Health app ...... 11 HealthKit ...... 11 HomeKit ...... 11 iBooks ...... 11 iCloud ...... 11 iTunes ...... 11 Keyboards ...... 12 Managed Devices ...... 12 Maps ...... 12 Media...... 12 Messages ...... 13 Metal ...... 13 Music app ...... 13 Networking ...... 13 Notes ...... 14 On Demand Resources ...... 14 Phone ...... 14 Photos ...... 14 Popover ...... 15 Quick Look ...... 15 Safari ...... 15 SafariServices ...... 15 Security ...... 16 Settings ...... 16 Setup Assistant ...... 16 Siri ...... 17 SiriKit ...... 18 Touch ID ...... 18 UIKit ...... 18 Vision ...... 21 watchOS ...... 22 Xcode ...... 22

About iOS 11 beta 8 The iOS 11 SDK provides support for developing iOS apps for iPhone, iPad, or iPod Touch devices running iOS 11. The SDK comes bundled with Xcode 9.0 beta available from https:// developer.apple.com/download/. For information on the new APIs in iOS 11, see What’s New in iOS. For information on the compatibility requirements for Xcode 9.0, see the Release Notes. Bug Reporting For issues not mentioned in Notes and Known Issues, file bugs through the Apple Developer website https://developer.apple.com/bug-reporting/. When filing a bug, please include the full version number in the bug title and in the description. This looks like “11.0 (15Axxxxx).” You can find the full version number in Settings > General > About > Version. Technical Support and Learning Resources Apple provides the following web resources to support your development:

• Apple Developer Forums. Participate in discussions about developing for Apple platforms and using developer tools.

• iOS 11 Developer Forums. Participate in discussions about developing for iOS 11 and issues with the SDK.

• iCloud Developer Page. Find information about developing for iCloud.

• For help with using Xcode, choose Help > Xcode Help. Autosubmission of Diagnostic and Usage Data By default, iOS 11 beta automatically sends anonymous diagnostic and usage data back to Apple. This includes information about crashes, freezes, and kernel panics; and information about how you use Apple and third-party software, hardware, and services. This information is used to help Apple improve the quality and performance of its products and services. You can stop the autosubmission of diagnostics and usage data by going to Settings > Privacy > Diagnostics and Usage > Don’t Send.

Notes and Known Issues General New Features • Added AVRoutePickerView to the AVKit framework and AVRouteDetector to the AVFoundation framework for enabling users to choose the route for playing content when multiple routes are available. Use AVRouteDetector to determine if multiple routes are available when route detection is enabled. If multiple routes are available, use AVRoutePickerView to present an interface for the user to choose the routes. Known Issues • Updating from iOS 11 beta 5 to beta 6 or later may stall indefinitely. If the progress bar on the Settings > General > Software Update pane stays full for more than a few seconds without showing the Install dialog, use the workaround below. Workaround: Follow these steps to delete the software update and then reinstall the new beta: 1. Open Settings > General > iPhone Storage. 2. Select the iOS 11 Developer Seed causing the error and press Delete. 3. Open Settings > General > Software Update and download the the update. Important: Stay on the Software Update pane until the update is ready to install. 4. When prompted, install the update. • To revert an earlier iOS, follow the instructions shown on the apple support site: https:// support.apple.com/kb/HT203282. 32-bit Apps Resolved Issues • Selecting Learn More from the prompt after tapping an already installed 32-bit app now opens the Settings App. (32340711) • Syncing 32-bit apps via iTunes now behaves as expected. (32356790) Known Issues • iOS apps may target iOS 10 or earlier to continue including a 32-bit slice. (31597913) Deprecations • 32-bit apps will not run on future betas of iOS 11. (26402174) 3D Touch Resolved Issues • Using 3D Touch with data detectors (phone numbers, addresses, and so on) now works correctly. (30504832)

3rd Party Apps Resolved Issues • Airplay now works as expected in third-party apps. (32819077) • KakaoTalk no longer crashes on launch or after typing. (32320793) • SlingTV now plays back audio and video as expected. (32649488) • Kindle books now sync as expected. (30878446) • Facebook Messenger now launches when the Facebook app is not installed. • The video playback controls in Amazon Video should now work correctly. (32056010) • Navigation bars should now look correct. (32076094) • Tencent Video should no longer crash on launch. (32343324) • Third-party keyboards should now work if not allowed full access. (32494032) • The audio should no longer drop during Skype calls. (32434672) • VSCO no longer displays an error when importing photos that have been recently taken. (32582234) • Citi Mobile no longer crashes on launch. (31336493) • Users can now log in to Pinterest using their email address. (31866166) • DirectTV no longer crashes on launch. (29533442) Known Issues • Audiobus 3 may crash on launch. (33764353) • MobileIron Mobile@Work may crash on launch. (31929650) • Tweetbot may not be able to post tweets containing photos that have been recently taken. (32569113) • Square Cash may crash on or shortly after launch. (30926902) AirPlay Resolved Issues • Tapping the AirPlay button in videos that are not full screen now works correctly. (33331364) Android Migration Resolved Issues • Migrating from your Android phone now works correctly. (31816854) App Analytics Resolved Issues • Non product page view impressions are now captured correctly. (31561060)

App Icons Resolved Issues • After restoring a device from an iTunes backup, app icons on the Home screen no longer appear white. (32303701) • The prompt that appears while changing an icon now displays the alternative app icon image instead of a placeholder. (32165847) App Store Resolved Issues • After restoring from an iTunes backup, previously offloaded apps now appear on the Home screen. (31968368) • Promoted in-app purchases now use the developer-specified sort order. (30877083) • Attempting to run TestFlight without an active AppStore Apple ID no longer results in a login failure. (32230818) • Apps over 100 MB should no longer download over Cellular connection after acknowledging the warning prompt. (32235051) • Launching the App Store no longer stops other audio. (32043325) Known Issues • Restoring from an iTunes backup containing an offloaded app which is also present in the iTunes library installs the offloaded app and then re-installs it from the App Store. This can result in the restored backup taking more space on your device than the size of the backup. (31461664) Workaround: After the restore completes, offload the app. Apple ID Resolved Issues • Accounts using a phone number as the Apple ID are now able to create an Apple ID for a child family member. (32130392) Known Issues • Some accounts using a phone number as the Apple ID may be unable to add certain payment types. (31677442) Apple Pay Resolved Issues • ApplePaySession.canMakePaymentsWithActiveCard no longer returns false when the merchant identifier is valid and appropriate payment methods are available. (32613797)

ARKit Known Issues • Continuing from a breakpoint while debugging an ARSession may result in VIO breaking. Any visual objects placed in the world/anchor are not visible. (31561202) AVFoundation Resolved Issues • The cameraCalibrationData property of AVCapturePhoto no longer returns nil when cameraCalibrationDataDeliveryEnabled is set to true. (32209427) • The values of the lensDistortionLookupTable and inverseLensDistortionLookupTable properties of AVCameraCalibrationData are now centered properly. The 0 value represents no elongation or shrinkage. (32339695) • The CGImageRepresentation and previewCGImageRepresentation methods of AVCapturePhoto now return the correct values. For more information, see the documentation. (31392054) • AVCapturePhoto now returns the correct result when accessing the fileDataRepresentation property of an uncompressed buffer (420f/420v/BGRA), instead of a TIFF file format representation. (31902960) Known Issues • Still capture requests fail and the video stream stops producing a buffer when using the 720p30 video format with the depthDataDeliveryEnabled property of AVCapturePhotoSettings set to true. (32060882) • Depth values in the non default 160x120 and 160x90 depth data formats are half of the expected values, and disparity values are twice the expected value. (32363942) Bluetooth New Features • The CBManagerStatePoweredOff value of CBManagerState now indicates both when Bluetooth is powered off in Settings and when the user has limited Bluetooth in the Control Center for use only by Apple Watch and Apple Pencil. (33226095) Resolved Issues • Connection issues for Bluetooth accessories using Wireless iAP protocol are now more reliable. (31439542) • Full functionality for the LE L2CAP channel feature is now available. (32493297) Calendar Resolved Issues • Buttons for Day, Week, Month, and Year now trigger on the first tap. (31883496) • Dragging an item into Calendar now behaves correctly. (33039833)

CarPlay Resolved Issues • Users should no longer get an error message when selecting Don’t Reply after reading a message in CarPlay. (32099700) Classroom Known Issues • Shared iPad users with complex passcodes cannot log in by tapping their icon in a class list. (30567424) Workaround: Tap Other Users and enter your Managed Apple ID and password. CloudKit Known Issues • CloudKit does not support unsigned long long values with the high-order bit set. (30567424) • Applications that use CKModifyRecordsOperation should specify an appropriate value for CKModifyRecordsOperation.isAtomic. If your client is compiled against watchOS 4, operations enqueued against the default CKRecordZone have new behavior because atomic is true by default. If the operation hits a "preflight" failure (most commonly, a network issue uploading a CKAsset, or a malformed CKRecord), the entire operation is canceled. (30838858) Connectivity Resolved Issues • Connecting to a cellular network after restarting or powering on a device now works correctly. (32727321) • Activating a Sprint Cellular data plan on iPad now works correctly. (32600925) • Reader mode utilizing NFC now works correctly on supported devices. (32721033) Known Issues • iPad prepaid data plan purchases made on the device may fail on a cellular connection. Workaround: Purchase the data plan while connected to Wi-Fi. Control Center New Features • Tapping the Wi-Fi button in Control Center now disconnects from the current network and temporarily disables Wi-Fi networking. (32299242) Resolved Issues • The expanded Wi-Fi UI in Control Center now updates the network name when transitioning between networks. (32280116)

• The Bluetooth button behavior in Control Center now mirrors that of the Wi-Fi control. (32300000) Core Spotlight Resolved Issues • Indexer file dragging no longer fails for both package file types or for files whose URL doesn't have a matching absoluteString and path. (32354867) Do Not Disturb Resolved Issues • Do Not Disturb While Driving is enabled starting with beta 2. (32232545) EventKit Known Issues • Storing data to a non default event store in EventKit may not work. (31335830) FaceTime Resolved Issues • FaceTime Live Photos is now enabled by default. (33322822) Family Sharing Resolved Issues • If payment verification is required after the purchase of an Apple Music family membership, Family setup now launches as expected. (32056496) • Pending invitations now show in Family Sharing settings. (32602074) • After sharing iCloud storage with family members, the confirmation screen now closes. (32458127) • Sharing your location with family members now turns on location sharing. (32746961) • When creating an Apple ID for a child, the Terms & Conditions acceptance screen no longer freezes. (32365952) Files App Resolved Issues • The Files app can now display a QuickLook for an iWork document. (32353448) • Quicklook thumbnails provided by QuickLook thumbnail extensions for custom UTI types now show the appropriate thumbnail. (32354934) • VoiceOver now interacts correctly with Done, List, and Share buttons when VoiceOver is enabled and a user opens any document in the Recents tab. (32362561) Known Issues • In Simulator, documents saved in Local Storage won't load again through the Document Browser. (32947101)

Foundation Resolved Issues • Reads and writes on a secure connection that uses the new authenticating HTTPS proxy feature of URLSessionStreamTask now work correctly. (31916868) • The fractionCompleted property of the Progress object returned by NSItemProvider now advances in proportion to the data provider’s progress. (32385051) Known Issues • Clients of NSURLSessionStreamTask that use a non-secure connection fail to connect when an error occurs during PAC file evaluation and the system is configured for either Web Proxy Auto Discovery (WPAD) or Proxy Automatic Configuration (PAC). A PAC evaluation failure can occur when the PAC file contains invalid JavaScript or the HTTP host serving the PAC file is unreachable. (33609198) Workaround: Use startSecureConnection to establish a secure connection. • To preserve backwards compatibility, iOS 11 beta 3 removed the NSURLSession empty string behavior for suppressing the sending of HTTP headers that was introduced in beta 2. (32959604) • In iOS 11 beta 2 and later, NSURLSession and NSURLConnection may not to load URLs if the system is configured with certain PAC files. PAC files are JavaScript files that specify the HTTP proxies used for accessing the Internet, and are configured in Settings > Wi-Fi. (32883776) Workaround: Set “HTTP Proxy: Configure Proxy” to “Off” for Wi-Fi network. • The suggestedName property of NSItemProvider is not used when an NSData representation is requested as an open-in-place file. Instead, a temporary file name is used. (32342544) • The visibility parameter in NSItemProvider is not enforced. All representations are visible to all processes. (32233127) • Support for using the String and URL types with NSItemProvider is absent in this beta. (32138540) Workaround: Substitute String and URL with a different type. • preferredPresentationSize is not available in this beta. (32501502) Haptics Resolved Issues • Performing a forced refresh on iPhone 7 and iPhone 7 Plus no longer results in an unexpected pop or sound. (32635793)

Health app Known Issues • Favorites added to the Health app in iOS 11 beta 4 or earlier are no longer available. Favorites added prior to iOS 11 have been restored. (30774300) Workaround: Add new favorites to the Health App using iOS 11 beta 5 or later. HealthKit Resolved Issues • Attempting to finish a workout route when no location data is inserted no longer throws an exception. (32307523) HomeKit Resolved Issues • Siri now recognizes a HomeKit setup in devices upgraded to iOS 11 beta. (32338077) • When multiple home hubs are configured, reading from or writing to Bluetooth accessories now works correctly. (32578105) iBooks Resolved Issues • Dropping PDFs and books into iBooks now works correctly. (32328715) • Audiobooks now appear in the library after purchasing or after downloading again. (32150156) • After deleting a book purchased from the store, subsequent download attempts now work as expected. (32775084) • iBooks will no longer freeze when adding or removing a bookmark in a PDF document. (32625432) iCloud Resolved Issues • After restoring from an iTunes backup, users are now able to authenticate iCloud credentials during setup. (32721872) • When restoring from iCloud Backup in Setup Assistant, you should now see the correct list of backups. (31739878) • Some services should now sync correctly on initial iCloud login. (32407057) • Device Enrollment Program iPads now support iCloud backups. (32027587) iTunes Resolved Issues • When installing the beta, users with separate iTunes and iCloud accounts are no longer logged out from their iTunes account. (32228993)

Known Issues • In some cases when restoring from an iTunes backup, app icons and names may be missing until app sync and installation is complete. (32543667) Keyboards New Features • Added a new Arabic keyboard for the Najdi dialect. (29187663) Resolved Issues • Changes to the keyboard state such as changing the keyboard type from one-handed to emoji, now persist. (33092873) Managed Devices Resolved Issues • Apps installed by MDM are no longer stuck in waiting after restoring from a backup. (32267165) • Unenrolled Managed Devices no longer reinstall MDM apps upon restore. (32387929) Maps Resolved Issues • Siri is now able to get directions with Maps when Do Not Disturb While Driving is active. (32273986) Media Resolved Issues • When a user revokes an application’s access to Media & Apple Music in Settings > Privacy > Media & Apple Music, the Music User Token now behaves correctly. (31932361) • Elapsed time is now updated when touching play or pause, or when seeking during video content playback. (32065281) • Song metadata now syncs correctly with iTunes. This includes play counts, skip counts, and associated timestamps. Smart Playlists that use these criteria, such as Recently Played, do not update. This does not affect Star Ratings or Love/Dislike. (31488141) • In Podcasts, selecting a station with multiple episodes may navigate to a blank screen. (32320460) • Setting the nowPlayerItem property of MPMusicPlayerController now works correctly. (32258814) Deprecations • requestPersonalizationTokenForClientToken is deprecated in iOS 11. Use getUserTokenFromDeveloperToken instead. In the current build, requestPersonalizationTokenForClientToken returns an error. In a future build, it will return valid music user tokens without requiring a change to your app. (32065560)

Messages Resolved Issues • When testing the new Message Filter app extension feature, if the first incoming message from an unknown recipient is marked as spam by the extension, they are now delivered to the user. (31986503) • Messages on iCloud should now be available after a device has been offline. (32224851) • Inserting an MSMessage using MFMessageComposeViewController now works correctly. (32087732) Known Issues • The “Messages in iCloud” feature was removed in iOS 11 beta 5 and will ship in a future software update to iOS 11. Users can continue to receive and store messages on each device, and they can continue to backup and restore messages using iCloud Backup. • The localParticipantIdentifier and selectedMessage properties are nil for an MSMessage of style MSMessageLiveLayout when inserted into the transcript. (31374415) Metal New Features • Added the BGR10A2 pixel format to Metal in beta 2. Music app Resolved Issues • Notifications should now function as expected. (32463538) Known Issues • Turning off “Show in my Profile” for a playlist may still show the playlist name and artwork in your profile. (32560995) Networking New Features • Added the Multipath Networking switch to Developer Settings to enable testing of multipathServiceType. Enabling Multipath Networking disables reducing cellular data usage for Wi-Fi Assist and allows experimenting with the multipath aggregation mode. (32927263) Known Issues • Wi-Fi password sharing and Personal Hotspot sharing on beta 2 and later don't work with devices that are running beta 1. (32500217)

Notes Resolved Issues • If a user restores from a backup in which the Notes app is deleted, the app now works properly when re-installed. (32499971) • Rotating an iOS device no longer causes Apple Pencil to become unusable. (32020094) On Demand Resources Resolved Issues • When debugging On Demand Resources, if the target is configured to use asset packs embedded in the Product Bundle, the assets are now found. (32437929) Phone Resolved Issues • Phone app should no longer crash when a voicemail message is deleted. (32394726) • For certain carriers in certain geographies, some services, such as Voicemail, Messaging, Call Wait, Call Forwarding, and so on, on Wi-Fi calling-enabled devices now work correctly. (32433588) • An SOS notification is no longer be sent when canceled. (32413903) • The call history list in the Recents tab now updates correctly. (33094744) • During a multiparty conference call, all numbers are displayed in the UI. (33325487) Known Issues • The Greeting and Edit buttons in the Voicemail tab of the Phone app are disabled after listening to a voicemail. (33351538) Workaround: Quit and reopen the Phone app. Photos Resolved Issues • Portrait images no longer change when entering Edit mode. (31889782) • Editing a photo in Simulator now works correctly. (32298353) • Thumbnails in the Photos import view and Image Capture app should now appear correctly. (32318758) • RAW+JPG photos imported using the camera connection kit are now imported in the correct format. (32260701) • Creating a new Photos or Kaleidoscope Watch Face from the Create Watch face share option in Photos no longer exits unexpectedly. (32011772) • AirDrop sharing of Live Photos no longer results in an error when importing to Photos. (31971874)

• Photos captured on iOS 11 now show the correct orientation on versions of macOS earlier than 10.13. (32311412) Known Issues • Some third-party apps may not fully support HEVC and HEIF. (30292869) Popover Resolved Issues • Immediately pressing Home from a popover-enabled app should no longer cause touch to become unresponsive. (32435759) • Launching a popover-enabled app from the Dock no longer flashes the popover or the Dock during the launch animation. (32429615) Quick Look Resolved Issues • Quick Look thumbnail extensions can now access the fileURL parameter of QLFileThumbnailRequest inside the provideThumbnailForFileRequest:completionHandler method of the QLThumbnailProvider protocol. (32354934) Safari New Features • iOS 11 adds a new sync system for your Safari Bookmarks and Reading List to provide better syncing and security. Migration to the new sync system occurs silently after all the devices signed in to your iCloud account are running iOS 11. (22936727) Resolved Issues • In beta 2 and earlier, Safari Content Blockers may not have blocked content as expected. Workaround: If a Content Blocker is not working as expected, in Settings > Safari, toggle the state of the Content Blocker. • Routing audio to the speakerphone using WebRTC it is now works correctly. (32059254) • Opening a link in Safari no longer results in a loop where Safari and another app repeatedly open each other. (32518579) • SafariViewController no longer goes blank when opening multiple tabs. (32337105) • The temporary increase in the amount of memory used to load Safari Content Blocker in beta 3 is removed in beta 4 and later. (32330531) SafariServices New Features • SFSafariViewController adds improved UI for 3D Touch previews by collapsing the toolbars to show just the domain and by adding default preview actions. (27222648)

• Added SFAuthenticationSession, a new API used to authenticate a user with a web service. Use the url parameter of the init method to specify a URL for an authentication webpage. SFAuthenticationSession then authenticates the user and calls the provided completion handler with either a callback URL containing an authentication token, or with an error. (32433374) • Custom UIActivity items added to SFSafariViewController are now shown near the front of the UIActivityViewController by default. A user can still change the order of the activities to fit their preference. (32661540) Security Resolved Issues • The restriction introduced in iOS 11, macOS 10.13, tvOS 11, and watchOS 4 that required TLS version 1.2 for cipher suites as defined in RFC 5246 has been removed. (33140907) Settings Resolved Issues • The Settings app no longer crashes when adding or deleting keyboards. (32716997) • The Settings app no longer crashes when deleting Podcasts from device storage. (32408313) • First-time installation of profiles now works as expected. (32249534) • The Offload App feature now works for apps that are shipped with the OS. (32283120) • Personal hotspot data usage is now included in the cellular data usage UI when the device acts as the host on T-Mobile US devices. (32262043) • Storage graph and size information in Settings now updates correctly. (32295963) Known Issues • Purchasing an AT&T data plan on iPad does not update the cellular data number in Settings > General > About. (33043804) Workaround: Restarting the device may display the cellular data number. In addition, a user can view the cellular data number by signing into their AT&T account in Settings > Cellular Data > Manage AT&T Account. • Cellular data for music downloads may be included in Wi-Fi Services instead of in iTunes Accounts in the Cellular > System Services panel of the Settings app. (32353045) • Social accounts have been removed from Settings in iOS 11. Third-party apps no longer have access to those signed-in accounts. (31687059) Setup Assistant Resolved Issues • The progress bars for Sync on Reset and Guide User to Backup now work correctly. (32715751)

Siri New Features • Added new voices for both genders of Brazilian Portuguese, Canadian French, Dutch, and Swedish. Added new female voices for English and Mexican Spanish, and upgraded the voice for both genders of Japanese and Chinese. (32221950) • Added support for translation requests from English US to Chinese, Spanish, German, French, and Italian. (32221937) Resolved Issues • Siri UI now dismisses automatically from the screen while using Messages with CarPlay. (32428580) • Siri results for Weather, Stocks, and Movies queries are now legible. (32327773) • Switching Siri’s voice from the Settings screen no longer plays a different voice from the default voice. (32332081) • The Lists & Notes domain implementation for non-English languages should now work in the same way as US English. (30457023) • Siri no longer hangs or times-out if the Home button is held for the duration of the spoken request. (33086511) • While sending messages with Siri in CarPlay, pressing the “Send” button on the screen no longer results in the error, “Uh oh, there was a problem.” (33160022) • On Chinese networks, Siri now disambiguates between the three available emergency numbers before dialing. (31805684) Known Issues • General Knowledge and Wikipedia queries in languages other than English (United States) may result in a variety of UI and layout issues. (33404897) • SiriKit commands for Notebook that are in Finnish do not work correctly if the commands are broken into more than one utterance. (32272318) • Siri may use information from previous requests when completing the current request, even if Siri was closed between the requests. (33148434) Workaround: To begin a new request use the “Start over” Siri command. • Using Siri to correct the spelling of a transcribed request may result in an error. Workaround: Tap the misspelled word and correct it using the on-screen keyboard. • Weather snippets currently show a sash icon from the iOS Weather app. The snippet should show the icon for The Weather Channel. It is also missing an attribution that opens The Weather Channel app. (31429437) • Users may encounter disambiguation issues while using Siri for Phone and Messages. (32477407) • Using Siri to disambiguate between multiple phone numbers for a contact sometimes does not work. (32591639) Copyright © 2017 Apple Inc. All Rights Reserved. Page 17 of 22

Workaround: Tap a selection in the UI. SiriKit Resolved Issues • Siri no longer loops when using SiriKit Notes queries to mark a reminder. (32398834) • When a user verbally tries to disambiguate between two or more SiriKit apps in a disambiguation list, Siri now prompts for more details before opening an app. (32188589) • SiriKit testing now works in Simulator. (32721342) • If the user does not mention the app name in the initial utterance, tapping the app in the disambiguation no longer launches the app instead of other possible Siri actions. (32361047) • INImage objects constructed with URLs or image names now display correctly in the Siri UI. (31585381) Known Issues • After installing a SiriKit extension on a simulated device, using Siri may result in the error ‘Error Domain=PlugInKit Code=16 "other version in use”’ shown in the console and in the spoken error “Sorry, you'll need to continue in the app.” (33663314) Workaround: Restart a simulated device after installing a SiriKit extension. Touch ID Resolved Issues • Touch ID now works correctly with the LocalAuthentication framework in the iOS 11 Simulator runtime. (33355624) UIKit Resolved Issues • Setting the delaysContentTouches property of UITableView to false now works correctly and results in cells highlighting immediately on a touchdown event. (27102830) • Importing a document using UIDocumentPickerViewController now returns a copy of the document. (32358695) • In drag and drop, move operations are supported only when the drag and the drop both happen within the same app. Starting in beta 2, the value of UIDropSession.allowsMoveOperation is set to false. (32416557) • The view argument of the locationInView: method of UIDragSession and UIDropSession is no longer nullable. The declaration of the method has changed to location(in view: UIView). (31714683) • UINavigationItem.searchController now works with view controllers that use a UIScrollView. (32511772)

Known Issues • UIDocumentBrowserViewController does not show UIDocumentPickerExtensionViewController app extensions in the list of sources. While these will be re enabled in a future beta, consider using an NSFileProviderExtension instead, as they are integrated in UIDocumentBrowserViewController instead of being presented in a separate sheet. (31975976) • Setting the textContentType to username or password for UITextField in the previewProvider property of UIDragItem is not fully implemented. During the drag session, each change to the previewProvider causes an immediate update, regardless of which app changed it. In addition, clearing the previewProvider does not cause the preview to go back to its non-overridden state. (30385458) • Setting the previewProvider property of UIDragItem immediately after the drag item is created has no effect. (32284908) Workarounds: Implement dragInteraction:previewForLiftingItem:session: in your drag interaction's delegate to change the lift preview. The preview carries over to the drag session. Change the preview during the drag session by setting previewProvider after the delegate’s sessionWillBegin is called. If you are using UITableView or UICollectionView, there is no direct equivalent of that method, so you may use a delay instead. • The canLoadObjectsOfClasses: method of UIDragDropSession will be removed in a later seed. Use canLoadObjectOfClass: instead. (32242367) • When dragging more than five items, the drop/cancel animation uses a default animation. The system calls the dropping/canceling preview calls for the first five of these items, even though they are not used. In a later beta, the system will not make these calls, and instead provides an additional API for animating alongside items for which a custom animation cannot be applied. (32299785) • Do not use the class UIURLDragPreviewView because will be removed in a later beta. To make drag previews of URLs, use UIDragPreview and UITargetedDragPreview. (32306613) • Table views in Interface Builder documents compiled with Xcode 9.0 may have fixed heights for rows, section headers, and section footers, and may not self-size by default. (32188814) Workaround: Set the table view rowHeight, sectionHeaderHeight, or sectionFooterHeight to UITableViewAutomaticDimension after the table view has been instantiated.

• UITableView has a new system gesture for quickly selecting rows. A two-finger tap on table views that support multiple selection sets the table view to editing, if it is not already, and selects the tapped row. Unlike a single-finger tap, which toggles selection, the two- finger tap always selects the tapped row and has no effect if the row is already selected. This new gesture is enabled only in apps built for iOS 11. (29127664) • UITableView has a new property, separatorInsetReference, that changes how a custom value set in the separatorInset property is interpreted. By default, the value is .fromCellEdges, which means that custom separatorInset values are always interpreted as an inset from the edges of the cell, even in cases where table view would normally use larger automatic insets for the separator, such as a very wide table view when the cellLayoutMarginsFollowReadableWidth property is true. Set the separatorInsetReference to .fromAutomaticInsets to use the separatorInset as a fixed distance from the automatic inset that a table view would normally use. Note that you can always use UITableViewAutomaticDimension for any edge of the separatorInset that you set, to receive the automatic inset on that edge. (31000402) • Table views now use estimated heights by default, which also means that cells and section header/footer views now self-size by default. The default value of the estimatedRowHeight, estimatedSectionHeaderHeight, and estimatedSectionFooterHeight properties is now UITableViewAutomaticDimension, which means the table view selects an estimated height to use. You should still provide a more accurate estimate for each property if possible, which is your best guess of the average value of the actual heights. If you have existing table view code that behaves differently when you build your app with the iOS 11 SDK, and you don’t want to adopt self-sizing, you can restore the previous behavior by disabling estimated heights by setting a value of zero for each estimated height property. (30197915) • Adding custom subviews directly to UITableView is not supported and might break in a future iOS release. (29094519) • The behavior of the delete swipe action has been changed. When implementing commitEditingStyle: to delete a swiped row, delete the row in the data source and call deleteRowsAtIndexPaths: on the table view to show the swipe delete animation. Not calling deleteRowsAtIndexPaths inside of this method results in the swiped row resetting to its resting position. Do not display a confirmation dialog in the implementation of this method, and support undo to allow canceling a deletion. To show a confirmation dialog, use a UIContextualAction instead (described next).

When implementing a destructive UIContextualAction, delete the row in the data source and call the completion handler with true. Do not call deleteRowsAtIndexPaths: in this case. If the deletion fails, call the completion false to cancel the deletion. Although it should generally be avoided, you can show a confirmation dialog to confirm the deletion, and then call the completion handler with true if the user confirms (after deleting the row from its data source), or with false if the user cancels. It is also advised to disable performsFirstActionWithFullSwipe on the UISwipeActionsConfiguration in this case. Note that the completion handler must be called in all cases. (31588888) • When the user selects one of the Accessibility Larger Text content sizes as their preferred content size, UITableViewCell uses a new default layout that is optimized for the larger sizes. The numberOfLines property of UITableViewCell labels (both textLabel and detailTextLabel) changes to 0 (unlimited) by default when the Accessibility content sizes are in use. You may override this by explicitly setting the numberOfLines property. The standard image view and accessory views are aligned with the first line of text in the cell, and cell text wraps around the image in order to maximize the amount of text displayed per line. For the Value1, Value2, and Subtitle styles, the detailTextLabel is arranged underneath the standard textLabel. For UISwitch accessory views, the switch is located below the labels and aligned with the leading edge of the text. Because of these changes, which increase the height of the cell content at Accessibility content sizes, it’s important to use self-sizing cells to ensure that the row height increases as necessary, and to avoid using a fixed row height for all content sizes. (28102750) • The imageNamed:inBundle:compatibleWithTraitCollection: class method of UIImage now properly infers the UIDisplayGamut trait if it is not explicitly provided. If you are deploying to earlier versions of iOS, to provide the UIDisplayGamut trait in the trait collection, you pass to imageNamed:inBundle:compatibleWithTraitCollection:. You can obtain the correct value of this trait from the window or view that will display the image. Failing to provide the value can result in images failing to load on devices with P3 displays if the sRGB renditions of those images had been thinned out of the asset catalog. (29915518) • By default, UIKit logging occurs only when unsatisfiable constraints are detected. Use the UIConstraintBasedLayoutThrowExceptionOnUnsatisfiableConstraints launch argument to add an assertion for early detection of the problem. The launch argument works in iOS 11 and later. (28123998) • A UIView that makes visual changes both by overriding drawRect: and by setting the layer contents may result in visual artifacts or other errors in iOS 11. Apps should use only one of the methods to make visual changes to a view. (31350188) Vision Resolved Issues • Vision now supports other Core ML feature vectors in addition to classifiers. iOS 11 beta 2 and earlier worked only with classifier models. (32944774)

• The RectangleTracker API should should no longer stop responding unexpectedly. (32332200) • The Vision API is now available from the macOS 10.13 and iOS 11 SDKs even if DEPLOYMENT_TARGET is set to a version earlier than the current OS. Known Issues • VNFaceLandmarkRegion2D is currently unavailable in Swift. (33191123) • Facial landmarks identified by the Vision framework may flicker in temporal use cases such as video. (32406440) Deprecations • The type of the orientation parameter in Vision framework calls has changed from an Int32 to an CGImagePropertyOrientation enum found in the ImageIO framework. Important: Update your code with the new type to avoid compilation warnings or errors related to the change. watchOS Resolved Issues • In the Watch app, changes to Mail > Include Mail are now saved. (32553544) • On an Apple Watch running a version of watchOS earlier than 4, location activity now correctly sets the location arrow in the status bar or in Settings. (31496053) • watchOS email alerts now use the configured settings. (32332614) Known Issues • Pairing an iPhone running a beta of iOS 11 and an Apple Watch running a version of watchOS earlier than 4 may fail. (32587160) Workaround: Attempt to pair the Apple Watch again. Xcode Known Issues • Debugging a disabled Messages extension may cause the Messages app to crash. (33657938) Workaround: Enable the extension before starting the debug session. • After a simulated iOS device starts up, it’s not possible to pull down the Notification center. (33274699) Workaround: Lock and unlock the simulated device and then reopen Home screen.